% mod_tex: distributed LaTeX-rendering over Apache % Copyright (C) 2007 Peter Danenberg % See doc/COPYING for details. \documentclass[12pt]{article} \usepackage{amsmath,stmaryrd,amssymb} \usepackage{cancel} \usepackage{color} \pagestyle{empty} \begin{document} \begin{displaymath} {\bf y}(n) = \sum_{n=0}^N {\bf h}(n){\bf s}(n-k) \end{displaymath} \end{document}